砥石面再生形振動に係わる研削過程の非線形特性と周波数挙動の解析

概要

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Periodical variation of the light reflectivity is known to be generated on a ground cylindrical surface due to the onset of the so-called wheel regenerative vibration that increases in magnitude with the progressive wear of the grinding wheel accompanied by the formation of waviness. Multiple asperities of the waviness indicates the higher harmonic components of the fundamental vibration due to the relative runout of the wheel surface. To understand the nonlinear mechanism that causes the higher harmonic and the vibration frequency behavior, grinding experiments and theoretical analysis have been performed. It is known that when the relative wheel runout is greater than or nearly equal to the rate of removal, the nonlinear variation of the equivalent chip load occurs through the geometrical interference between wheel and workpiece, and it is responsible for the origin of the higher harmonics in the dynamic grinding force variation. Also, the sensitivity of the frequency of the wheel regenerative vibration depends on the modal flexibility of the structure measured relatively between the wheel and the workpiece.
社団法人日本機械学会の論文
1990-08-25